Monthly Historical AveragesPort Isabel, TX
Average Temperature
High
21°
Feels 21
Low
15°
Feels 14
Average Precipitation
3 Days
21.3mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, February 22, 2026
Day
19°Feels 19
Wind
42 km/h N
Gust
63 km/h
Humidity
54%
P.O.P
20%
Night
16°Feels 15
Wind
29 km/h NE
Gust
43 km/h
Humidity
55%
P.O.P
20%
Historical AveragesFeb 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity